[Vala] Gui error handling

[Donn Ingle <donn ingle gmail com>]

> Message: 1
> Date: Wed, 28 Jun 2017 22:08:54 -0400
> From: Steven Oliver <oliver steven gmail com>
> To: vala-list <vala-list gnome org>
> Subject: [Vala] Best way to handle errors in a GUI application?
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>         <CA+HG2Vhgbgd8WA+-7pe-6SoNs0mP5Gp4jCsqzTRr=KL7Q20aJQ mail gmail com>
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>
> After getting some great help after my last post, I have run into another
> issue I'm not sure how to solve. How do people recommend you handle errors
> when making a GUI application? I planned on taking the obvious approach of
> a pop-up message dialog that tells the user what they've done wrong, or
> what went wrong, but that has turned out to not be quite so easy. My code
> is architected such that the Application class creates the Main Window
> object which in turn creates a Gtk.Box object. So if the error occurs in
> the Box object, how do I create a message dialog tied to the main window?
> Do I have to pass the main window object around? Or is there a better way
> to do this that I'm missing?

Hi,
 I am not active in Vala coding right now, but I still read the digest.

For all kinds of useful reasons, just like your "passing around the
main window" — have a look into a thing called "pubsub", or "Publish
Subscribe."

It's not a library, it's an idea. Once you get it, you will wonder how
you ever lived without it!

Good luck,
/d